borehole: Meaning and Definition of

bore•hole

Pronunciation: (bôr'hōl", bōr'-), [key]
— n. Mining.
  1. a hole drilled in the earth, as for the purpose of extracting a core, releasing gas, oil, water, etc.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.